It's unclear when this started to happen. Dimitri, can you help triage?
Added the test to test_expectations.txt in r101264
It is a regression caused by r101172. I got it with manual bisecting. Andreas, could you check it, please?
(In reply to comment #2) > It is a regression caused by r101172. I got it with manual bisecting. > Andreas, could you check it, please? On it! Suspect it's the same issue as bug 73213, great that it broke a test :)
Unfortunately it is a flakey crash. But you can easily reprodeuce with old-run-webkit-tests --debug fast/dom/clone-node-style.html --iterations 100
Created attachment 116975 [details] QtWebKit gdb backtrack I reproduced this bug inside GBD with the following method: $ gdb WebKitBuild/Debug/bin/DumpRenderTree (gdb) run - <ctrl+v> <ctrl+v> <ctrl+v> <ctrl+v> <ctrl+v> ... (fast/dom/clone-node-style.html was on my clipboard) The crash backtrace is attached.
I added this test to the Qt Skipped list: http://trac.webkit.org/changeset/101389 Please unskip it with the proper fix. Thanks in advance.
*** Bug 73213 has been marked as a duplicate of this bug. ***
Created attachment 116992 [details] Proposed patch
bug 73392 may just be a straight dupe of this, but let's just make it block it for now (the proposed patch fixed the issue we're having in Chromium, btw).
Comment on attachment 116992 [details] Proposed patch View in context: https://bugs.webkit.org/attachment.cgi?id=116992&action=review r=me, with comments > Source/WebCore/css/CSSMutableStyleDeclaration.h:-79 > - CSSMutableStyleDeclaration& operator=(const CSSMutableStyleDeclaration&); You probably want to hide this. > Source/WebCore/css/CSSMutableStyleDeclaration.h:80 > + void copyPropertiesAndStrictnessFrom(const CSSMutableStyleDeclaration&); As discussed, it might be clearer to just have copyProperties() and use the existing accessors for transfering the strictness.
Comment on attachment 116992 [details] Proposed patch As discussed with Antti, I'm cq+ing this as is so we get rid of the regression. I'm currently in transit and will make a follow-up patch with the requested adjustments later today.
Comment on attachment 116992 [details] Proposed patch Clearing flags on attachment: 116992 Committed r101502: <http://trac.webkit.org/changeset/101502>
All reviewed patches have been landed. Closing bug.